Abstract
Setophaga cerulea (Cerulean Warbler) is one of the fastest declining avian species in the United States, and its conservation has been hampered by a lack of basic biological information. Here we describe basic breeding biology and behavior and report incidental observations of scientifi c interest from three years of research on Cerulean Warblers in the Cumberland Mountains of eastern Tennessee. We located and monitored 241 nests and banded 83 Cerulean Warblers from 2008-2010. We documented mating strategies, timing and plasticity of reproduction, details of nest construction and main- tenance, parental behavior, predation of juveniles, post-fl edging behavior, interspecifi c interactions, female weight, and a longevity record. Many of these observations have not been formally recorded and add new dimensions to our understanding of Cerulean Warbler biology, ecology, and life history.
Published Version
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